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Träfflista för sökning "WFRF:(Renner Johan) srt2:(2015-2019)"

Sökning: WFRF:(Renner Johan) > (2015-2019)

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1.
  • Lantz, Jonas, et al. (författare)
  • Is aortic wall shear stress affected by aging? An image-based numerical study with two age groups
  • 2015
  • Ingår i: Medical Engineering and Physics. - : Elsevier. - 1350-4533 .- 1873-4030. ; 37:3, s. 265-271
  • Tidskriftsartikel (refereegranskat)abstract
    • The size of the larger arteries increases during the entire life, but not much is known about how the change in size affects the blood flow. This study compares the flow field in a group of young males (N = 10, age = 23.5 +/- 1.4), with a group of older males (N = 8, age = 58.0 +/- 2.8). Aortic geometries were obtained by magnetic resonance imaging, and the aortic blood flow field was computed using computational fluid dynamics. The aortic wall shear stress was obtained from the computations, and it was concluded that time-averaged wall shear stress decreased with increased age, probably as a consequence of increased aortic diameter and decreased stroke volume, which in turn reduces the shear rates in the aorta. However, the oscillatory shear index, which is a measure of the oscillatory nature of the wall shear stress vector, seemed to be unaffected by aging.
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2.
  • Renner, Johan, et al. (författare)
  • Real-world Engineering Projects in a Master Level Course
  • 2016
  • Ingår i: Proceedings of the International CDIO Conference.
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • Real-world engineering projects are problems supplied by industry or institutions that is not primarily intended only as an educational exercise but are rooted in a relevant engineering issue. These projects are incorporated as an important part of a six ECTS-credits master course in computational heat-transfer. Normally 70-80 students attend the course and are typically allowed to choose among four to five different projects. Overall impression is that the inclusion of these engineering problems results in higher level of questions, skills and motivation of the students.
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